Repotting Phalaenopsis Seedling

[FrancFurtado]

Hello.

I received last week two Phalaenopsis that i ordered.

One of them is a seedling, can i repot this one with this product:

Atami Hydro Rokz

(Sorry, i can't post the link, it says:
"New posts are limited by number of URLs..." )

The seedling is potted with sphagnum moss and i dont like the sphagnum, it doesn't dry out, i mean; it is always wet.
The leaves are the main concern, they are still yellow and i am starting to worry.

Thank You